1HEADmaster

1 files changed, 62 insertions, 0 deletions

diff --git a/utils/particle_test/particle_test.cpp b/utils/particle_test/particle_test.cpp
new file mode 100644
index 0000000..ce1f236
--- /dev/null
+++ b/utils/particle_test/particle_test.cpp
@@ -0,0 +1,62 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//===========================================================================//
+
+#include "tier0/platform.h"
+#include "mathlib/mathlib.h"
+#include "mathlib/ssemath.h"
+#include "particles.h"
+#include "tier2/tier2.h"
+#include "tier0/memdbgon.h"
+
+void main(int argc,char **argv)
+{
+	InitCommandLineProgram( argc, argv );
+
+
+	// test sse noise
+	FourVectors start;
+	start.LoadAndSwizzle(Vector(-1,4,3),Vector(0,7,8),Vector(8,1,2),Vector(0,0,0));
+	FourVectors delta;
+	delta.LoadAndSwizzle(Vector(.1,-.1,.05),Vector(.1,.1,.1),Vector(0,-.1,0),Vector(.1,0,0));
+#ifdef TIME_IT
+	float start_time=Plat_FloatTime();
+	for(int sim=0;sim<1000*1000*10;sim++)
+	{
+		__m128 n=SSENoise( start );
+		start+=delta;
+	}
+	printf("n/s=%f\n",(4*1000*1000*10.0)/(Plat_FloatTime()-start_time));
+#endif
+	for(int i=0;i<130;i++)
+	{
+		__m128 noise=SSENoise( start );
+//		printf(" noise(x=%f)=%f\t%f\t%f\t%f\n",
+		printf(" %f,%f,%f,%f,%f\n",
+			   start.X(0),noise.m128_f32[0],
+			   noise.m128_f32[1],
+			   noise.m128_f32[2],
+			   noise.m128_f32[3]);
+		start+=delta;
+	}
+
+#if 0
+	ReadParticleConfigFile("particles.cfg");
+	ParticleCollection lots_o_particles( "fireball" );
+	lots_o_particles.SetNActiveParticles( 1000000 );
+	// kick the particles up into the air
+	lots_o_particles.FillAttributeWithConstant( PARTICLE_ATTRIBUTE_XCOORD, 0.0 );
+	lots_o_particles.FillAttributeWithConstant( PARTICLE_ATTRIBUTE_YCOORD, 0.0 );
+	lots_o_particles.FillAttributeWithConstant( PARTICLE_ATTRIBUTE_ZCOORD, 10.0 );
+	lots_o_particles.FillAttributeWithConstant( PARTICLE_ATTRIBUTE_PREV_XCOORD, 0.0 );
+	lots_o_particles.FillAttributeWithConstant( PARTICLE_ATTRIBUTE_PREV_YCOORD, 0.0 );
+	lots_o_particles.FillAttributeWithConstant( PARTICLE_ATTRIBUTE_PREV_ZCOORD, 0.0 );
+	float start=Plat_FloatTime();
+	for(int sim=0;sim<1000;sim++)
+		lots_o_particles.Simulate( 0.01 );
+	printf("p/s=%f\n",(100.0*1000000)/(Plat_FloatTime()-start));
+#endif
+														   
+}